Display rack



FIG. 1 is a front-top perspective view of a display rack, showing our new design;

FIG. 2 is a rear-bottom perspective thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof.

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a right side view thereof; and,

FIG. 8 is a left side view thereof.

The dashed lines in the drawings depict portions of the design that form no part of the claim. 

CLAIM The ornamental design for a display rack, as shown and described. 